Commit Graph

6580 Commits

Author SHA1 Message Date
Gilles Peskine
ae98d4aa39 Minor style fix 2017-10-10 17:46:19 +01:00
Gilles Peskine
ad8b9ec9e9 config.pl get: be better behaved
When printing an option's value, print a newline at the end.

When the requested option is missing, fail with status 1 (the usual
convention for "not found") rather than -1 (which has a
system-dependent effect).
2017-10-10 17:46:07 +01:00
Gilles Peskine
58e5fdc0ca config.pl get: don't rewrite config.h; detect write errors
scripts/config.pl would always rewrite config.h if it was reading it.
This commit changes it to not modify the file when only reading is
required, i.e. for the get command.

Also, die if writing config.h fails (e.g. disk full).
2017-10-10 17:45:33 +01:00
Gilles Peskine
134a082455 Fixed "config.pl get" for options with no value
Between 2.5.0 and 2.6.0, "scripts/config.pl get MBEDTLS_XXX" was fixed
for config.h lines with a comment at the end, but that broke the case
of macros with an empty expansion. Support all cases.
2017-10-10 17:45:00 +01:00
Ron Eldor
a84c1cb355 Address PR cpomments reviews
1) move the change into Features from Changes, in the changLog
2) Change the feature alternative configuration MBEDTLS_ECDH_ALT
definition to function alternative defintions
MBEDTLS_ECDH_COMPUTE_SHARED_ALT and MBEDTLS_ECDH_GEN_PUBLIC_ALT
2017-10-10 19:04:27 +03:00
Hanno Becker
7f25f850ac Adapt uses of mbedtls_rsa_complete to removed PRNG argument 2017-10-10 16:56:22 +01:00
Hanno Becker
f9e184b9df Remove PRNG argument from mbedtls_rsa_complete 2017-10-10 16:55:41 +01:00
Ron Eldor
314adb6baa Address PR review comments
1) update ChangLog to have new feature in Features instead of Changes
2) Change MBEDTLS_ECDSA_ALT to function specific alternative definitions:
MBEDTLS_ECDSA_SIGN_ALT, MBEDTLS_ECDSA_VERIFY_ALT and MBEDTLS_ECDSA_GENKEY_ALT
2017-10-10 18:49:02 +03:00
Hanno Becker
1e801f5706 Clarify guarantees made by rsa_complete and rsa_check_privkey 2017-10-10 16:44:47 +01:00
Hanno Becker
68b4d58bd8 Remove PRNG argument from mbedtls_rsa_deduce_moduli
It is not necessary to pass a CSPRNG to `mbedtls_rsa_deduce_moduli`, as there
exist well-working static strategies, and even if a PRNG is preferred, a
non-secure one would be sufficient.

Further, the implementation is changed to use a static strategy for the choice
of candidates which according to some benchmarks even performs better than the
previous one using random candidate choices.
2017-10-10 16:39:10 +01:00
Hanno Becker
c76c619dd0 Reconcile resending of previous flights
This commit reconciles the code path responsible for resending the
final DTLS handshake flight with the path for handling resending of
the other flights.
2017-10-10 16:04:49 +01:00
Hanno Becker
90333dab85 Replace wrong usage of WANT_READ by CONTINUE_PROCESSING 2017-10-10 16:04:48 +01:00
Hanno Becker
8ec8102c9a Split WANT_READ in two error codes
This commit restricts WANT_READ to indicate that no data is available on the
underlying transport. To signal the need for further processing - which was
previously also handled through this error code - a new internal error code
MBEDTLS_ERR_SSL_CONTINUE_PROCESSING is introduced.
2017-10-10 16:04:48 +01:00
Hanno Becker
4cb1f4d49c Style corrections 2017-10-10 16:04:48 +01:00
Hanno Becker
52c6dc64c6 Correct length check for DTLS records from old epochs.
DTLS records from previous epochs were incorrectly checked against the
current epoch transform's minimal content length, leading to the
rejection of entire datagrams. This commit fixed that and adapts two
test cases accordingly.

Internal reference: IOTSSL-1417
2017-10-10 16:04:32 +01:00
Hanno Becker
d82d84664a ssl-opt.sh: Kill server via KILL signal if TERM doesn't succeed 2017-10-10 16:04:32 +01:00
Hanno Becker
cadb5bbe3c Add slight delay before killing server in ssl-opt.sh for log output
It seems that tests from ssl-opt.sh are sometimes failing because
the server is killed before its output has been finalized. This commit
adds a small delay in ssl-opt.sh before killing the server to prevent
that.
2017-10-10 16:04:32 +01:00
Hanno Becker
8b170a0a0b Enhance and extend checking of message processing state
-  Enhances the documentation of mbedtls_ssl_get_bytes_avail (return
   the number of bytes left in the current application data record, if
   there is any).
-  Introduces a new public function mbedtls_ssl_check_pending for
   checking whether any data in the internal buffers still needs to be
   processed. This is necessary for users implementing event-driven IO
   to decide when they can safely idle until they receive further
   events from the underlying transport.
2017-10-10 16:04:32 +01:00
Hanno Becker
16970d2912 Add support for event-driven IO in ssl_client2 and ssl_server2 2017-10-10 16:03:26 +01:00
Hanno Becker
e09ca3d9b6 Add polling function for network contexts
This commit adds a function `mbedtls_net_poll` to the network module
allowing to check if a network context is available for read or write.
2017-10-10 16:03:18 +01:00
Hanno Becker
e65ce7862a Enhance debugging output in ssl_tls.c
Give a note on the debugging output on the following occasions:
(1) The timer expires in mbedtls_ssl_fetch_input
(2) There's more than one records within a single datagram
2017-10-10 16:02:36 +01:00
Hanno Becker
fbb0b701e4 Corrupt application data in the beginning instead of the end in UDP proxy
The UDP proxy corrupts application data at the end of the datagram. If
there are multiple DTLS records within the same datagram, this leads
to the wrong message being corrupted. This commit always corrupts the
beginning of the message to prevent this.

Overall, the UDP proxy needs reworking if it is supposed to reliably
support multiple records within a single datagram, because it
determines its actions from the type of the first record in the
current datagram only.
2017-10-10 16:02:36 +01:00
Hanno Becker
1dd62ea811 Add packing option to UDP proxy
This commit provides the new option pack=TIME for the udp proxy
./programs/test/udp_proxy. If used, udp packets with the same
destination will be queued and concatenated for up to TIME
milliseconds before being delivered.

This is useful to test how mbed TLS's deals with multiple DTLS records
within a single datagram.
2017-10-10 16:01:15 +01:00
Hanno Becker
f65ca329b6 Introduce UDP proxy wrapper script
This commit introduces the script `programs/test/udp_proxy_wrapper.sh` which can
be used to wrap the SSL server binary `programs/ssl/ssl_server2` by the UDP
proxy application `programs/test/udp_proxy` while maintaining the same
interface from the command line.

Specifically, given UDP proxy arguments ARGS_UDP and SSL server arguments
ARGS_SSL, the command line

> ./udp_proxy_wrapper.sh ARGS_UDP -- ARGS_SSL

behaves like

> ./ssl_server2 ARGS_SSL

wrapped by

> ./udp_proxy ARGS_UDP

The motivation and benefit of this is that scripts like `ssl-opt.sh` can be used
with the server command line `P_SRV` modified to `./udp_proxy_wrapper.sh
ARGS_UDP -- DEFAULT_ARGS_SSL` which will result in all tests being executed for
an SSL server behind a UDP proxy.
2017-10-10 16:01:15 +01:00
Hanno Becker
17c0493ca8 Allow default arguments for client/server/proxy in ssl-opt.sh
ssl-opt.sh checks whether the client, server and proxy commands are
names of executable files, forbidding the use of default arguments by
by e.g. setting P_SRV="ssl_server2 debug_level=3". This commit relaxes
this check, only considering the part of the command string prior to
the first whitespace.
2017-10-10 16:00:48 +01:00
Ron Eldor
d0c56de934 Add support for public keys encoded with PKCS#1
1) Add support for public keys encoded with PKCS#1
2) Add tests for PKCS#1 PEM and DER, and PKCS#8 DER
2017-10-10 17:12:07 +03:00
Andres Amaya Garcia
36855d66bb Change generate_errors.pl to call perl grep
Change the script generate_errors.pl to call the grep function in Perl
instead of calling the external tool grep directly as this causes
problems when ANSI escape sequences are included in the grep output
string.
2017-10-09 17:22:07 +01:00
Andres Amaya Garcia
86968c6dd1 Fix typo and bracketing in macro args 2017-10-07 18:29:03 +01:00
Andres Amaya Garcia
3f50f511de Ensure failed test_suite output is sent to stdout
The change modifies the template code in tests/suites/helpers.function
and tests/suites/main.function so that error messages are printed to
stdout instead of being discarded. This makes errors visible regardless
of the --verbose flag being passed or not to the test suite programs.
2017-10-07 18:15:28 +01:00
Andres Amaya Garcia
def0339db2 Ensure failed test_suite output is sent to stdout
The change modifies the template code in tests/suites/helpers.function
and tests/suites/main.function so that error messages are printed to
stdout instead of being discarded. This makes errors visible regardless
of the --verbose flag being passed or not to the test suite programs.
2017-10-07 17:33:34 +01:00
Hanno Becker
21acb66cba Correct typo: PBDFK -> PBKDF 2017-10-06 14:38:15 +01:00
Andres Amaya Garcia
67d8da522f Remove use of GNU sed features from ssl-opt.sh 2017-10-06 11:59:13 +01:00
Andres Amaya Garcia
3b1bdff285 Fix typos in ssl-opt.sh comments 2017-10-06 11:59:13 +01:00
Andres Amaya Garcia
b84c40b12f Add ssl-opt.sh test to check gmt_unix_time is good
Add a test to ssl-opt.sh that parses the client and server debug
output and then checks that the Unix timestamp in the ServerHello
message is within acceptable bounds.
2017-10-06 11:59:13 +01:00
Andres Amaya Garcia
93993defd1 Extend ssl-opt.h so that run_test takes function
Extend the run_test function in ssl-opt.sh so that it accepts the -f
and -F options. These parameters take an argument which is the name of
a shell function that will be called by run_test and will be given the
client input and output debug log. The idea is that these functions are
defined by each test and they can be used to do some custom check
beyon those allowed by the pattern matching capabilities of the
run_test function.
2017-10-06 11:59:13 +01:00
Andres Amaya Garcia
6bce9cb5ac Always print gmt_unix_time in TLS client
Change ssl_parse_server_hello() so that the parsed first four random
bytes from the ServerHello message are printed by the TLS client as
a Unix timestamp regardless of whether MBEDTLS_DEBUG_C is defined. The
debug message will only be printed if debug_level is 3 or higher.

Unconditionally enabling the debug print enabled testing of this value.
2017-10-06 11:59:13 +01:00
Gilles Peskine
470edd031f Restored note about using minimum functionality in makefiles 2017-10-06 11:59:13 +01:00
Gilles Peskine
11cb578fda Note in README that GNU make is required
Our README claims that we only use basic Make functionality, but in
fact GNU make is required for conditional compilation. Document this.

Addresses issue #967
2017-10-06 11:59:13 +01:00
Simon Butcher
16373a5933 Fix changelog for ssl_server2.c usage fix 2017-10-06 11:59:13 +01:00
Ron Eldor
71f68c4043 Fix ssl_server2 sample application prompt
FIx the type of server_addr parameter from %d to %s.
Issue reported by Email by Bei Jin
2017-10-06 11:59:13 +01:00
Simon Butcher
2c4f9460ea Update ChangeLog for fix to #836 2017-10-06 11:59:13 +01:00
Hanno Becker
1a9a51c7cf Enhance documentation of ssl_write_hostname_ext, adapt ChangeLog.
Add a reference to the relevant RFC, adapt ChangeLog.
2017-10-06 11:58:50 +01:00
Hanno Becker
0446a39744 Enhance documentation of mbedtls_ssl_set_hostname
(1) Add missing error condition
(2) Specify allowance and effect of of NULL hostname parameter
(3) Describe effect of function on failure
2017-10-06 11:58:50 +01:00
Hanno Becker
947194e7cf Make mbedtls_ssl_set_hostname safe to be called multiple times
Zeroize and free previously set hostnames before overwriting
them. Also, allow clearance of hostname by providing NULL parameter.
2017-10-06 11:58:50 +01:00
Hanno Becker
b25c0c78cf Add test case calling ssl_set_hostname twice
Add a test case calling ssl_set_hostname twice to test_suite_ssl.
When run in CMake build mode ASan, this catches the current leak,
but will hopefully be fine with the new version.
2017-10-06 11:58:50 +01:00
Ron Eldor
cb8d54b22d Fix typo in configs/README.txt file
Fix typo in Readme file: ajust->adjust
2017-10-06 11:58:50 +01:00
Xinyu Chen
e1a94a6404 Correct the printf message of the DTLS handshake.
Make it consistent with dtls_server.c
2017-10-06 11:58:50 +01:00
Gilles Peskine
964faeb6c4 Cleaned up get_line for test data files
Look, ma, a use for do...while!

Also removed 1-3 calls to strlen.
2017-10-06 11:58:50 +01:00
Gilles Peskine
b04e2c3d81 Allow comments in test data files 2017-10-06 11:58:50 +01:00
Andres Amaya Garcia
acdae0cb33 Remove use of GNU sed features from ssl-opt.sh 2017-10-06 11:55:32 +01:00